Elevator rescue monitoring system, method, device, equipment and medium

Abstract

The invention relates to an elevator rescue monitoring system, method and device, computer equipment, a computer readable storage medium and a computer program product. The system comprises a grating ruler, a grating ruler reader and a control module, the grating ruler is arranged in an elevator shaft in a penetrating mode, and the grating ruler is provided with position codes associated with the elevator shaft; the grating ruler reader is arranged in an elevator car and used for reading the position code of the grating ruler and sending the position code to the control module. The control module is used for decoding the position codes to obtain position information of the elevator car, and the running speed of the elevator car is obtained according to the position information at different moments; and the control module is further used for controlling the elevator to stop running under the condition that the running speed is larger than the preset speed threshold value. By the adoption of the system, the accuracy of the obtained running speed can be guaranteed, it can be guaranteed that the elevator can stop running in time when abnormal conditions such as overspeed happen to the elevator, and safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator rescue, in particular to an elevator rescue monitoring system method, device, computer equipment, computer readable storage medium and computer program product. BACKGROUND

[0002] In the current elevator rescue field, the elevator rescue monitoring system is triggered by the trapped passengers through the alarm button and the intercom call to confirm that the elevator is trapped, and then the speed and direction of the elevator in the emergency rescue mode are obtained through the rotary encoder installed on the elevator drive host. Then, the speed obtained by the rotary encoder on the elevator drive host may not be accurate due to the failure of the elevator drive host, which may mislead the rescue personnel and affect the rescue efficiency. SUMMARY

[0003] Therefore, it is necessary to provide an elevator rescue monitoring system, method, device, computer equipment, computer readable storage medium and computer program product capable of accurately obtaining the running speed of the elevator car to solve the above technical problems.

[0004] In a first aspect, the present application provides an elevator rescue monitoring system, comprising a grating ruler, a grating ruler reader and a control module, wherein:

[0005] The grating ruler is arranged through the elevator shaft, and the grating ruler has a position code associated with the elevator shaft; the grating ruler reader is arranged in the elevator car and is used to read the position code of the grating ruler and send the position code to the control module;

[0006] The control module is used to decode the position code to obtain the position information of the elevator car, and obtain the running speed of the elevator car according to the position information at different time; and further used to control the elevator to stop running when the running speed is greater than a preset speed threshold.

[0007] In one of the embodiments, the system further comprises an elevator operating box and an elevator weighing device, wherein:

[0008] The elevator operating box is used to obtain the button trigger information of the elevator operating box in the elevator car;

[0009] The elevator weighing device is used to obtain the current weight information of the elevator car;

[0010] The control module is further used to obtain the trapped passenger detection result in the elevator car according to the current weight information and / or the button trigger information when the running speed is greater than the preset speed threshold.

[0011] In one embodiment, the system further comprises microswitches and display components arranged outside the hall, wherein:

[0012] The microswitches are arranged on the brake of the elevator drive master, and are configured to generate on-off signals according to the action of the brake of the elevator drive master;

[0013] The control module is further configured to, after sending the instruction to control the elevator to stop running, obtain the lifting or releasing state information of the brake of the elevator drive master according to the on-off signals, and send the lifting or releasing state information of the brake of the elevator drive master to at least one of the display components;

[0014] The at least one of the display components is configured to display the lifting or releasing state information of the brake of the elevator drive master.

[0015] In one embodiment, the system further comprises display components arranged outside the hall, wherein:

[0016] The control module stores door zone position codes associated with door zone positions of each floor obtained through pre-floor height self-learning, and is further configured to, in the case that the position code matches the door zone position code, send door zone position information of the corresponding floor to at least one of the display components;

[0017] The at least one of the display components is configured to display the door zone position information of the corresponding floor.

[0018] In one embodiment, the control module is further configured to, in the case that the position code represents that the elevator car is not at the door zone position, control a buzzer outside the elevator hall closest to the position where the elevator car is located to buzz.

[0019] In one embodiment, the system further comprises a backup power supply configured to supply power to the control module and the brake of the elevator drive master in the case that the elevator is powered off.

[0020] In a second aspect, the application further provides an elevator rescue monitoring method applied to a control module in the elevator rescue monitoring system as described in the first aspect, and the method comprises:

[0021] Obtaining a position code of an elevator car through a grating ruler reader;

[0022] Decoding the position code to obtain position information of the elevator car, and obtaining a running speed of the elevator car according to the position information at different time points;

[0023] In the case that the running speed is greater than a preset speed threshold, controlling the elevator to stop running.

[0024] In one of the embodiments, the method further comprises: obtaining current weight information of the elevator car and button trigger information of an elevator control box in the elevator car when the running speed is greater than a preset speed threshold;

[0025] According to the current weight information and / or the button trigger information, a trapped passenger detection result in the elevator car is obtained.

[0026] In one of the embodiments, the method further comprises:

[0027] When the position code matches the door zone position code, door zone position information of a floor corresponding to the door zone position code is sent to at least one display component to display the door zone position information of the floor; the door zone position code is obtained through pre-layer height self-learning, and the display component is arranged outside the hall.

[0028] In one of the embodiments, the method further comprises:

[0029] When the position code indicates that the elevator car is not in the door zone position, a buzzer closest to a position of the elevator car is controlled to buzz.

[0030] In a third aspect, the application further provides an elevator rescue monitoring device applied to a control module in the elevator rescue monitoring system as described in the first aspect, comprising:

[0031] A position obtaining module is configured to obtain a position code for the elevator car through a grating ruler reader;

[0032] A speed obtaining module is configured to decode the position code to obtain position information of the elevator car, and obtain a running speed of the elevator car according to the position information at different time points;

[0033] A stop running module is configured to control the elevator to stop running when the running speed is greater than a preset speed threshold.

[0034] In a fourth aspect, the application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements steps in the method as described in the second aspect when executing the computer program.

[0035] In a fifth aspect, the application further provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement steps in the method as described in the second aspect.

[0036] In a sixth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the method according to the second aspect:

[0037] The elevator rescue monitoring method, device, computer equipment, computer readable storage medium and computer program product provided by the present application can provide real-time monitoring of the running state of the elevator in the rescue mode. The position code is obtained through the scale and the scale reader, and then the running speed of the elevator car is obtained. Even in the case of wire rope slipping, the accuracy of the obtained running speed can be ensured. In addition, when an abnormal situation such as overspeed occurs during the rescue mode operation, the elevator can be stopped in time to ensure the safety of the passengers in the elevator car. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the description of the embodiments of the present application or the related art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0039] Figure 1 The structure schematic diagram of the elevator rescue monitoring system in one embodiment;

[0040] Figure 2 The structure schematic diagram of the elevator rescue monitoring system in another embodiment;

[0041] Figure 3 The flow schematic diagram of the elevator rescue monitoring method in one embodiment;

[0042] Figure 4 The flow schematic diagram of the trapped passenger detection in one embodiment;

[0043] Figure 5 The structure schematic diagram of the elevator rescue monitoring system in another application embodiment;

[0044] Figure 6 The structure block diagram of the elevator rescue monitoring device in one embodiment;

[0045] Figure 7 Fig. 1 is a diagram of an internal structure of a computer device according to an embodiment. DETAILED DESCRIPTION

[0046] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing specific embodiments only and is not intended to be limiting of the present application.

[0048] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It should also be understood that the term "comprising" or "having" etc. specifies the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0049] In one exemplary embodiment, as shown in Figure 1 An elevator rescue monitoring system is provided, including a grating ruler 102, a grating ruler reader 104, and a control module 106, wherein:

[0050] The grating ruler 102 is arranged through the elevator shaft, and the grating ruler 102 has a position code associated with the elevator shaft; the grating ruler reader 104 is arranged on the elevator car and is used to read the position code of the grating ruler 102 and send the position code to the control module.

[0051] The grating ruler can be a long strip-shaped encoding device made of metal or plastic, and has specific markings or magnetic changes on it, which represent different position codes; the position code associated with the elevator shaft can mean that the position codes corresponding to different positions in the elevator shaft are different; specifically, the grating ruler can be installed in the elevator shaft, extending from the bottom to the top, covering the entire height range of elevator operation. The grating ruler reader can be an optical sensor, a magnetic sensor or other types of sensors installed on the elevator car, used to read the position code on the grating ruler; the grating ruler reader sends the read position code information to the control module.

[0052] The control module 106 is configured to decode the position code to obtain position information of the elevator car, and obtain a running speed of the elevator car according to the position information at different times; and further configured to control the elevator to stop running when the running speed is greater than a preset speed threshold.

[0053] The control module decodes the position code to obtain accurate position information of the elevator car in the elevator shaft, and calculates a running speed of the elevator car according to the position information at different times; and when it is detected that the running speed of the elevator car exceeds a preset speed threshold, the control module takes control measures to make the elevator stop running.

[0054] Exemplarily, when the elevator control module sends elevator fault state information to the background, or a passenger in the elevator triggers an alarm button to inform the background that the elevator is in trouble, the rescue personnel arrive at the scene and then start the rescue mode of the elevator to run the elevator to help the trapped personnel to escape, at the same time, the elevator rescue monitoring system starts to run, at this time, the control module records the position code every time interval A to obtain accurate position information of the elevator car in the shaft, and updates the running speed every time interval A according to the recorded array, the running speed is obtained by subtracting the position information before the time interval A from the position information after the time interval A of the elevator car, and then dividing by the time corresponding to the time interval A. When the obtained running speed is greater than the preset speed threshold, it indicates that the running speed of the elevator car exceeds the allowed running speed of the elevator in the rescue mode, and the control module can cut off the power supply of the brake coil of the elevator drive host through the control relay, at this time, the brake is released, the elevator is stopped, and the elevator stops running. In addition, the control module can also send the running speed to the display component outside the hall to display the running speed of the elevator through the display component.

[0055] In one embodiment, the control module is further configured to obtain a running direction of the elevator car according to the position information at different times; and further configured to determine the preset speed threshold according to the running direction.

[0056] The control module obtains a first position of the elevator car before the rescue mode runs, and obtains a second position of the elevator car when the elevator car runs in the rescue mode (i.e. the brake of the elevator drive host is lifted), when the value of the second position minus the first position is greater than 0, it is determined that the running direction of the elevator car is upward running; when the value of the second position minus the first position is less than 0, it is determined that the running direction of the elevator car is downward running; when the value of the second position minus the first position is equal to 0, it is determined that the elevator car is in a stationary state, and then the rescue mode may fail or the elevator fails to be driven in the rescue mode.

[0057] Exemplarily, the preset speed threshold corresponding to the upgoing direction is A, the preset speed threshold corresponding to the downgoing direction is B, the control module obtains the running direction of the elevator car as downgoing according to the position information at different time, determines the preset speed threshold as B according to the downgoing direction, and then can control the elevator to stop running in the case that the running speed is greater than the preset speed threshold B.

[0058] In the embodiment, the speed threshold set for different running directions can be obtained, so that the running protection can be accurately implemented for different running conditions, and the safety can be improved.

[0059] In the elevator rescue monitoring system, the grating ruler with the position code associated with the elevator shaft is arranged in the elevator shaft, the position code on the grating ruler is read by the grating ruler reader arranged in the elevator car, and the position code is sent to the control module; the control module obtains the position information of the elevator car in the elevator shaft according to the decoded position code, and then obtains the running speed of the elevator car according to the position information at different time, and controls the elevator to stop running in the case that the running speed is greater than the preset speed threshold. In the conventional technology, the monitoring method for the elevator in the rescue mode is to obtain the speed and direction of the elevator in the rescue mode by the rotary encoder installed on the elevator drive host, and to determine whether the elevator is in the door area by the position sensor installed on the car side and the magnetic separation plate installed on the guide rail, so that the rescue personnel can monitor the rescue process of the elevator car. However, when the steel wire rope of the elevator slips or the like, the speed or direction information provided by the rotary encoder of the elevator drive host will be abnormal, so that the rescue personnel cannot actually confirm the running state of the car. The elevator rescue monitoring system provided in the embodiment can provide real-time monitoring of the running state of the elevator in the rescue mode, and the position code is obtained by the grating ruler and the grating ruler reader to obtain the running speed of the elevator car. Even in the case of slipping of the steel wire rope, the accuracy of the obtained running speed can be ensured, and the elevator can be stopped in time when the elevator runs in the rescue mode and abnormal conditions such as overspeed occur, so as to protect the safety of the passengers in the elevator car.

[0060] In one exemplary embodiment, as shown in Figure 2 the elevator rescue monitoring system further comprises an elevator operating box 108 and an elevator weighing device 110, wherein:

[0061] The elevator operating box 108 is used to obtain the button trigger information of the elevator operating box in the elevator car; and the elevator weighing device 110 is used to obtain the current weight information of the elevator car.

[0062] The control module is further configured to obtain the trapped passenger detection result in the elevator car according to the current weight information and / or the button trigger information in the case that the running speed is greater than the preset speed threshold.

[0063] Exemplarily, when the running speed is greater than the preset speed threshold, the control module or the buttons of the elevator control panel in the elevator car trigger information and the current weight information of the elevator car when the elevator stops running, and then the trapped passenger detection result in the elevator car is obtained according to the current weight information and / or the button trigger information. Specifically, example one, according to the comparison of the current weight information and the empty load weight information of the elevator car, if the comparison result of the current weight information and the empty load weight information indicates that there is other weight load in the elevator car, the trapped passenger detection result is obtained as that there is a trapped passenger in the elevator car; example two, according to the analysis of the button trigger information, if new button trigger information is obtained after the elevator stops running, the trapped passenger detection result is obtained as that there is a trapped passenger in the elevator car; example three, according to the comparative analysis of the current weight information and the button trigger information, if the comparison result of the current weight information and the empty load weight information indicates that there is a load in the elevator car (the load indicates that there may be personnel or goods in the elevator), and then the analysis is combined with the button trigger information, if new button trigger information is obtained after the elevator stops running, the trapped passenger detection result is obtained as that there is a trapped passenger in the elevator car.

[0064] In this embodiment, when the running speed is greater than the preset speed threshold, the load condition of the elevator car is obtained by the elevator weighing device, and the button trigger condition in the elevator car is obtained by the elevator control panel, so as to judge whether there is a trapped passenger in the elevator car. The trapped passenger in the elevator car can be detected at the first time when the elevator is abnormal, and then more accurate rescue measures can be taken.

[0065] In one exemplary embodiment, as shown in Figure 2 The elevator rescue monitoring system further includes a micro switch 112 and a display assembly 114 arranged outside the hall, wherein: the micro switch 112 is arranged on the brake of the elevator drive host, and is used to generate an on-off signal according to the action of the brake of the elevator drive host; the control module 106 is further used to obtain the lifting or release state information of the brake of the elevator drive host according to the on-off signal after sending the instruction to control the elevator to stop running, and send the lifting or release state information of the brake of the elevator drive host to at least one display assembly; and the at least one display assembly 114 displays the lifting or release state information of the brake of the elevator drive host.

[0066] The elevator drive host brake can be a brake on an elevator hoisting machine. When the elevator needs to stop running, the brake release action is to tightly grasp the traction sheave (i.e. the main drive wheel of the elevator) through mechanical force to prevent the elevator car from moving unexpectedly due to gravity or other reasons after stopping, ensuring the safety of the elevator in the stationary state. The action of the elevator drive host brake can be the lifting or releasing of the brake. The basic working principle of the elevator drive host brake can be to use electromagnetic force or spring force to control the braking process, i.e. when the elevator is running normally, the lifting state of the brake keeps the brake open through the attraction of the electromagnetic coil, allowing the traction sheave to rotate freely; when the elevator controller sends a stop signal, the current of the electromagnetic coil is cut off, and the electromagnetic attraction disappears. At this time, the spring force or gravity will make the brake friction plate press the traction sheave, preventing it from rotating, i.e. the release state of the brake, so that the elevator car remains stationary.

[0067] Exemplarily, a micro switch can be installed on the brake (brake) of the elevator drive host. When the brake action, i.e. the lifting or releasing of the brake, the micro switch will generate an on or off signal. The control module obtains the lifting or releasing state information of the elevator drive host brake according to the on or off signal generated by the micro switch after sending the stop running instruction, and then sends the lifting or releasing state information of the elevator drive host brake to at least one display component arranged outside the hall. Rescue personnel can view the lifting or releasing state information of the elevator drive host brake through the display component, and further determine whether the brake has been actuated to the correct position according to the current observed elevator rescue running state to determine the reliability of the brake.

[0068] In this embodiment, the display component displays the current brake action state of the elevator, which can timely display the key running state of the elevator, improve the transparency of the elevator running in rescue mode, and help to quickly handle problems existing in the rescue process, and improve the safety of the rescue mode.

[0069] In one exemplary embodiment, as shown in Figure 2 The elevator rescue monitoring system further includes a display component 114 arranged outside the hall, wherein: the control module 106 stores the door zone position code associated with the door zone position of each floor obtained through pre-floor height self-learning, and the control module 106 is further configured to send the door zone position information of the corresponding floor to at least one display component if the position code matches the door zone position code; and the at least one display component 114 is configured to display the door zone position information of the corresponding floor.

[0070] In the embodiment, the control module matches the position code with the stored door zone position code, obtains the door zone position information of the corresponding floor according to the matched door zone position code A, and sends the door zone position information to at least one display component. The display component can display the obtained door zone position information of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information of the floor, and rescue.

[0071] In the embodiment, the control module matches the position code with the stored door zone position code, obtains the door zone position information of the corresponding floor according to the matched door zone position code A, and sends the door zone position information to at least one display component. The display component can display the obtained door zone position information of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information of the floor, and rescue.

[0072] In the embodiment, the control module matches the position code with the stored door zone position code, obtains the door zone position information of the corresponding floor according to the matched door zone position code A, and sends the door zone position information to at least one display component. The display component can display the obtained door zone position information of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information of the floor, and rescue.

[0073] In the embodiment, the control module matches the position code with the stored door zone position code, obtains the door zone position information of the corresponding floor according to the matched door zone position code A, and sends the door zone position information to at least one display component. The display component can display the obtained door zone position information of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information of the floor, and rescue.

[0074] In the embodiment, the control module matches the position code with the stored door zone position code, obtains the door zone position information of the corresponding floor according to the matched door zone position code A, and sends the door zone position information to at least one display component. The display component can display the obtained door zone position information of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information of the floor, and rescue.

[0075] In the embodiment, the control module matches the position code with the stored door zone position code, obtains the door zone position information of the corresponding floor according to the matched door zone position code A, and sends the door zone position information to at least one display component. The display component can display the obtained door zone position information of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information of the floor, and rescue.

[0076] In one exemplary embodiment, the elevator rescue monitoring system further comprises a backup power supply for supplying power to the control module and the brake of the elevator drive host in the case of power failure of the elevator. In this way, the control module and the brake of the elevator drive host can be supplied with power in the case of power failure of the elevator, so that the rescue process can still be monitored by the elevator rescue monitoring system in the case of power failure to ensure the safety of the rescue process, and the brake of the elevator drive host can still be supplied with power to provide critical elevator operation power for the rescue process in the case of power failure.

[0077] In one exemplary embodiment, as shown in Figure 3 An elevator rescue monitoring method is provided, applied to a control module in an elevator rescue monitoring system, and the method comprises the following steps:

[0078] In step S302, the position code for the elevator car is obtained by the grating ruler reader.

[0079] In step S304, the position code is decoded to obtain the position information of the elevator car, and the running speed of the elevator car is obtained according to the position information at different times.

[0080] In step S306, the elevator is controlled to stop running in the case where the running speed is greater than the preset speed threshold.

[0081] The grating ruler can be a long strip-shaped coding device made of metal or plastic, which has specific markings or magnetic changes representing different position codes. The position codes associated with the elevator shaft are different at different positions in the elevator shaft. Specifically, the grating ruler can be installed in the elevator shaft, extending from the bottom to the top and covering the entire height range of the elevator operation. The grating ruler reader can be installed on the elevator car and can be an optical sensor, a magnetic sensor or other types of sensors, used to read the position code on the grating ruler. The grating ruler reader sends the read position code information to the control module. The control module decodes the position code to obtain the accurate position information of the elevator car in the elevator shaft, and calculates the running speed of the elevator car through the position information at different times. In the case where the running speed of the elevator car exceeds the preset speed threshold, the control module takes control measures to stop the elevator.

[0082] Exemplarily, in the case that the elevator control module sends the elevator fault state information to the background, or the passenger in the elevator triggers the alarm button to inform the background that the elevator is in trouble, the rescue personnel rush to the scene and then start the rescue mode of the elevator to run the elevator to help the trapped personnel escape, at the same time, the elevator rescue monitoring system starts to run, at this time, the control module records the position code every time interval A to obtain the accurate position information of the elevator car in the shaft, and updates the running speed every time interval A according to the recorded array, the running speed is obtained by subtracting the position information before the time interval A from the position information after the time interval A of the elevator car, and then dividing by the time corresponding to the time interval A. In the case that the obtained running speed is greater than the preset speed threshold, that is, the running speed of the elevator car exceeds the allowed running speed of the elevator in the rescue mode, the control module can cut off the power supply of the brake coil of the elevator drive host through the control relay, at this time, the brake is released, and the elevator is stopped, that is, the elevator stops running. In addition, the control module can also send the running speed to the display component outside the hall to display the running speed of the elevator through the display component.

[0083] In one embodiment, in the above step S304, the running direction of the elevator car can also be obtained according to the position information at different times, and the preset speed threshold is determined according to the running direction.

[0084] In the above step S304, the control module obtains the first position of the elevator car before the rescue mode runs, and obtains the second position of the elevator car when the elevator car runs in the rescue mode (that is, the brake of the elevator drive host is lifted). When the value of the second position minus the first position is greater than 0, it is determined that the running direction of the elevator car is upward running; when the value of the second position minus the first position is less than 0, it is determined that the running direction of the elevator car is downward running; when the value of the second position minus the first position is equal to 0, it is determined that the elevator car is in a stationary state, and then the rescue mode may fail or the elevator cannot be driven in the rescue mode.

[0085] Exemplarily, the preset speed threshold corresponding to the upward running direction is A, the preset speed threshold corresponding to the downward running direction is B, the control module obtains the running direction of the elevator car as downward running according to the position information at different times, and determines the preset speed threshold as B according to the downward running direction, and then the elevator can be controlled to stop running in the case that the running speed is greater than the preset speed threshold B.

[0086] In this embodiment, by obtaining the respective preset speed thresholds for different running directions, the running protection can be accurately implemented for different running conditions, and the safety can be improved.

[0087] In the elevator rescue monitoring method, the position code is obtained through the grating ruler and the grating ruler reader, and then the running speed of the elevator car is obtained. Even in the case of wire rope slipping, the accuracy of the obtained running speed can be ensured, and the elevator can be stopped in time when an abnormal situation such as overspeed occurs in the rescue mode, thereby ensuring the safety of passengers in the elevator car.

[0088] In one exemplary embodiment, as shown in Figure 4 The elevator rescue monitoring method further comprises the following steps:

[0089] In step S402, when the running speed is greater than the preset speed threshold, the current weight information of the elevator car and the button trigger information of the elevator control box in the elevator car are obtained.

[0090] In step S404, the trapped passenger detection result in the elevator car is obtained according to the current weight information and / or the button trigger information.

[0091] Exemplarily, when the running speed is greater than the preset speed threshold, the elevator stops running, the button trigger information of the elevator control box in the elevator car and the current weight information of the elevator car are controlled, and then the trapped passenger detection result in the elevator car is obtained according to the current weight information and / or the button trigger information. Specifically, example one, according to the comparison of the current weight information and the empty weight information of the elevator car, if the comparison result of the current weight information and the empty weight information indicates that there is other weight load in the elevator car, the trapped passenger detection result is obtained as that there is a trapped passenger in the elevator car; example two, according to the analysis of the button trigger information, if new button trigger information is obtained after the elevator stops running, the trapped passenger detection result is obtained as that there is a trapped passenger in the elevator car; example three, according to the comparative analysis of the current weight information and the button trigger information, if the comparison result of the current weight information and the empty weight information indicates that there is a load in the elevator car (the load indicates that there may be personnel or goods in the elevator), and the analysis of the button trigger information is combined, if new button trigger information is obtained after the elevator stops running, the trapped passenger detection result is obtained as that there is a trapped passenger in the elevator car.

[0092] In this embodiment, when the running speed is greater than the preset speed threshold, the control module obtains the load condition of the elevator car through the elevator weighing device, and obtains the button trigger condition in the elevator car through the elevator control box, to judge whether there is a trapped passenger in the elevator car. The trapped passenger in the elevator car can be detected at the first time when the elevator appears an abnormality, and then more accurate rescue measures can be taken.

[0093] In one example embodiment, the elevator rescue monitoring method can further include: in the case that the position code matches the door zone position code, sending door zone position information of the floor corresponding to the door zone position code to at least one display component to display the door zone position information of the floor.

[0094] The door zone position code is obtained through pre-layer height self-learning, and the display component is arranged outside the hall. After installation of each component of the elevator is completed, the elevator system records the position code of each service floor at the door zone position on the grating through layer height self-learning, and stores the position code as the door zone position code in the control module. When the grating reader reads the door zone position code, it indicates that the current position of the elevator car is at the door zone position of the service floor. The door zone position information of the floor can be used to indicate whether the elevator car has arrived at the door zone position on the floor.

[0095] For example, the control module matches the position code with the stored door zone position code, obtains the door zone position information A of the corresponding floor according to the matched door zone position code A, and sends the door zone position information A to at least one display component. The display component can display the obtained door zone position information A of the floor. At this time, the rescue personnel can open the hall-car door of the elevator hall of the floor after seeing the displayed door zone position information A of the floor to perform rescue.

[0096] In this embodiment, the control module matches the obtained position code with the stored door zone position code, and then sends the door zone position information of the floor corresponding to the matched door zone position code to the display component. The display component displays the door zone position information of the corresponding floor, so that whether the elevator car is at the door zone can be accurately determined in the rescue mode, and the rescue operation accuracy in the rescue process is improved.

[0097] In one example embodiment, the elevator rescue monitoring method can further include: in the case that the position code indicates that the elevator car is not at the door zone position, controlling a buzzer outside the elevator hall closest to the position where the elevator car is located to buzz.

[0098] In the case that the position code indicates that the elevator car is not at the door zone position, the control module does not find a door zone position code matching the position code in the stored door zone position code, and thus it is indicated that the elevator car is not at the door zone position.

[0099] In this embodiment, the control module controls the buzzer outside the elevator hall closest to the position where the elevator car is located to buzz in the case that the elevator car is not at the door zone position, so as to warn the rescue personnel that the elevator car has not stopped at the corresponding door zone position and the hall-car door of the elevator hall cannot be opened for rescue temporarily, and the safety in the rescue process can be improved.

[0100] In one application example, the elevator rescue monitoring system can be as shown in Figure 5 which includes a grating ruler with position coding, a grating ruler reader, a car communication board, a microcomputer board (control module), an operating box (elevator operating box), a car weighing device (elevator weighing device), a micro switch (not shown in the figure) arranged on the drive main machine holding brake, a display assembly (such as digital display & button) and a backup power supply.

[0101] The data read by the grating ruler reader through the position coding of the grating ruler is transmitted through the communication connection between the car communication board and the microcomputer board, and the data detected by the operating box and the car weighing device are also transmitted through the communication connection between the car communication board and the microcomputer board. It should be noted that the grating ruler reader, the car communication board, the operating box and the car weighing device are arranged in the elevator car, the grating ruler is arranged through the elevator shaft; the microcomputer board, the backup power supply and the frequency converter are arranged in the control cabinet of the elevator; the display assembly, i.e. digital display and button, is arranged outside the hall of each floor hall; the MG main machine, encoder and holding brake are arranged on the elevator drive main machine, and the micro switch is arranged on the holding brake. The MG main machine can refer to a motor and a generator, the motor is used to drive the elevator to run, and the generator is used to recover energy when the elevator descends. The AC220V power supply can be connected with the microcomputer board and the backup power supply, and the backup power supply can store energy to supply power to the microcomputer board and the holding brake of the drive main machine when needed. The AC380V power supply can supply power to the drive main machine and the microcomputer board through the frequency converter, and the microcomputer board can control the on-off of the frequency converter to control the action of the drive main machine. The encoder can provide the running speed and direction obtained by the rotation coding of the drive main machine, which can be used to compare and verify the running speed and direction obtained by the above-mentioned elevator rescue monitoring system to determine whether the elevator steel wire rope is slipping.

[0102] The above-mentioned elevator rescue monitoring system can realize the following functions:

[0103] 1) Car running state monitoring: Car emergency running state monitoring includes running direction and speed; Running direction: The elevator microcomputer board records the position of the car as z1 before emergency rescue, when the elevator car is in emergency rescue operation (i.e. the elevator drive host brake is lifted in emergency rescue mode), the elevator microcomputer board obtains the real-time position of the car as z2, when the data of z2 minus the data of z1 is greater than 0, the car running direction is upward, at this time the elevator microcomputer board will send the information of the upward running of the elevator car to the display device to display the elevator up, otherwise it is down; Running speed: When the elevator is in rescue operation (i.e. the elevator drive host brake is lifted in emergency rescue mode), the elevator microcomputer board records the absolute position of the car once every 500ms (this time can be adjusted according to needs, 500ms is only the default value) and updates the speed data once every 500ms according to the recorded array, the speed data is the absolute position data of the car after 500ms minus the absolute position data of the car before 500ms, and then divided by 500ms time, at this time the elevator microcomputer board will send the speed information of the elevator car to the display device to display the elevator speed, when the elevator microcomputer board records the running speed of the car in rescue mode exceeding the preset rescue maximum allowable value, the elevator microcomputer board will automatically control the relay to cut off the power supply of the drive host brake coil, at this time the host brake is released and the elevator stops running.

[0104] 2) Real-time position monitoring of the car: The grid ruler reader installed on the elevator car reads the grid ruler (with position coding) running through the entire elevator shaft, and sends the car position data to the elevator microcomputer board for decoding, at this time the elevator microcomputer board can obtain the real-time position of the car; When the elevator is installed, the elevator will record the door area position coding of each service floor on the grid ruler through the floor height self-learning, when the grid ruler reader reaches the door area position coding, it means that the current position of the car is at the door area position of the service floor, at this time the elevator microcomputer board will send the information of the car at the door area position to the display device, so as to facilitate the rescue personnel to open the hall car door for rescue; At the same time, when the car is not at the door area position, the elevator microcomputer board will also drive the hall buzzer to buzz to remind the rescue personnel, and the buzzer will stop buzzing when the car reaches the door area position.

[0105] 3) Monitoring whether the car has trapped passengers: When the elevator system cannot guarantee normal operation and causes the elevator to stop running, the elevator microcomputer board will automatically obtain the weighing data of the car weighing device, compare the weighing data when the car is empty, and confirm whether the car has passengers or goods trapped, at this time the elevator microcomputer board will automatically continuously obtain the button lighting data of the car operating box, if a new button of the operating box is lit at this moment, it means that the car has trapped passengers.

[0106] 4) Monitoring the action of the drive main brake: when the elevator enters the rescue mode, the elevator microcomputer board monitors the action of the drive main brake through the micro switch installed on the drive main brake; when the elevator brake is lifted, the brake pad of the drive main brake is separated from the drive main brake wheel, and the drive main brake can run, at which time the micro switch transmits the connection signal to the microcomputer board; when the elevator brake is released, the brake pad of the drive main brake is stopped on the drive main brake wheel, and the drive main brake cannot run, at which time the micro switch transmits the disconnection signal to the microcomputer board, so that the elevator microcomputer board monitors the action of the drive main brake.

[0107] The above-mentioned elevator rescue monitoring system can provide rescue personnel with information such as the running state of the elevator car in emergency rescue, the real-time position of the car, whether there are trapped passengers in the car, and the drive main brake of the elevator. The system is effective only in the emergency rescue mode of the elevator and does not affect the control of the elevator microcomputer board on the normal operation of the elevator.

[0108] It should be understood that, although each step in the flowchart involved in each embodiment as described above is displayed in sequence according to the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least part of the steps in the flowchart involved in each embodiment as described above can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0109] Based on the same inventive concept, the embodiments of the present application also provide an elevator rescue monitoring device for implementing the above-mentioned elevator rescue monitoring method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more elevator rescue monitoring device embodiments provided below can refer to the limitations of the elevator rescue monitoring method described above, which will not be repeated here.

[0110] In one exemplary embodiment, as shown in Figure 6 An elevator rescue monitoring device is provided, comprising: a position acquisition module 601, a speed acquisition module 602, and a stop running module 603, wherein:

[0111] The position acquisition module 601 is configured to acquire a position code for the elevator car through a grating ruler reader.

[0112] The speed acquisition module 602 is configured to decode the position code to obtain position information of the elevator car, and obtain a running speed of the elevator car according to the position information at different times.

[0113] The running stopping module 603 is configured to control the elevator to stop running when the running speed is greater than the preset speed threshold.

[0114] In an exemplary embodiment, the elevator rescue monitoring device further comprises a passenger detection module configured to obtain current weight information of the elevator car and button triggering information of the elevator operating box in the elevator car when the running speed is greater than the preset speed threshold; and obtain a trapped passenger detection result in the elevator car according to the current weight information and / or the button triggering information.

[0115] In an exemplary embodiment, the elevator rescue monitoring device further comprises a door zone position information obtaining module configured to send door zone position information of a floor corresponding to the door zone position code to at least one display component to display the door zone position information of the floor when the position code matches the door zone position code; the door zone position code is obtained through pre-hall height self-learning, and the display component is arranged outside the hall.

[0116] In an exemplary embodiment, the elevator rescue monitoring device further comprises a buzzer module configured to control a buzzer closest to the position where the elevator car is located to buzz when the position code represents that the elevator car is not in the door zone position.

[0117] The various modules in the elevator rescue monitoring device can be realized by software, hardware, and combinations thereof, in whole or in part. The various modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to the various modules.

[0118] In an exemplary embodiment, a computer device is provided, which can be a server, and an internal structure diagram of the computer device can be as shown in FIG. 8. Figure 7As shown in the figure. The computer device includes a processor, a memory, an input / output interface (I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through the system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capability. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store related data in the elevator rescue monitoring process. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with the terminal outside through network connection. The computer program is executed by the processor to realize an elevator rescue monitoring method.

[0119] Those skilled in the art can understand that, Figure 7 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0120] In one embodiment, a computer device is also provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to realize the steps in each of the above method embodiments.

[0121] In one embodiment, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by the processor to realize the steps in each of the above method embodiments.

[0122] In one embodiment, a computer program product is provided, including a computer program, and the computer program is executed by the processor to realize the steps in each of the above method embodiments.

[0123] It should be noted that the user information (including but not limited to user equipment information, user personal information, user weight information in the elevator, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties, and the collection, use and processing of related data need to comply with relevant regulations.

[0124] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. The non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. The volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., without being limited thereto.

[0125] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0126] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. An elevator rescue monitoring system, characterized in that, The system includes a grid ruler, a grid ruler reader, and a control module, wherein: The grid ruler is installed throughout the elevator shaft, and the grid ruler has a position code associated with the elevator shaft; the grid ruler reader is installed in the elevator car to read the position code of the grid ruler and send the position code to the control module; The control module is used to decode the position code to obtain the position information of the elevator car, obtain the running speed of the elevator car based on the position information at different times, and further control the elevator to stop running when the running speed is greater than a preset speed threshold.

2. The elevator rescue monitoring system according to claim 1, characterized in that, The system also includes an elevator control panel and an elevator weighing device, wherein: The elevator control box is used to obtain button trigger information from the elevator control box inside the elevator car; The elevator weighing device is used to obtain the current weight information of the elevator car; The control module is also used to obtain the detection result of the trapped passenger in the elevator car based on the current weight information and / or the button trigger information when the running speed is greater than the preset speed threshold.

3. The elevator rescue monitoring system according to claim 1, characterized in that, The system also includes microswitches and a display component located outside the hall, wherein: The micro switch is installed on the elevator drive host brake and is used to generate an on / off signal according to the action of the elevator drive host brake. The control module is further configured to, after issuing a command to stop the elevator, obtain the lifting or releasing status information of the elevator drive host brake based on the on / off signal, and send the lifting or releasing status information of the elevator drive host brake to at least one of the display components. At least one of the display components displays information about the lifting or releasing status of the elevator drive unit's brake.

4. The elevator rescue monitoring system according to claim 1, characterized in that, The system also includes a display component located outside the hall, wherein: The control module stores door zone location codes associated with the door zone locations of each floor, which are obtained through pre-learning of floor height. The control module is also used to send the door zone location information of the corresponding floor to at least one of the display components when the location code matches the door zone location code. At least one of the display components is used to display the door location information of the corresponding floor; The control module is also used to control the buzzer outside the elevator hall closest to the location of the elevator car to sound when the position code indicates that the elevator car is not in the door zone position.

5. The elevator rescue monitoring system according to any one of claims 1-4, characterized in that, The system also includes a backup power supply for supplying power to the control module and the elevator drive unit's brake in the event of a power outage.

6. An elevator rescue monitoring method, characterized in that, The control module applied to the elevator rescue monitoring system according to any one of claims 1-5, the method comprising: The position code for the elevator car is obtained using a ruler reader; The position code is decoded to obtain the position information of the elevator car, and the running speed of the elevator car is obtained based on the position information at different times. If the operating speed exceeds a preset speed threshold, the elevator will be stopped.

7. An elevator rescue monitoring device, characterized in that, The control module applied to the elevator rescue monitoring system according to any one of claims 1-5, the device comprising: The position acquisition module is used to acquire the position code for the elevator car through a grid ruler reader; The speed acquisition module is used to decode the position code to obtain the position information of the elevator car, and to obtain the running speed of the elevator car based on the position information at different times. The stop-run module is used to control the elevator to stop running when the running speed exceeds a preset speed threshold.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method of claim 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method of claim 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method of claim 6.

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